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Titolo:
Synthons and design in metal phosphates and oxalates with open architectures
Autore:
Rao, CNR; Natarajan, S; Choudhury, A; Neeraj, S; Vaidhyanathan, R;
Indirizzi:
Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India Jawaharlal Nehru Ctr Adv Sci Res Bangalore Karnataka India 560064 , India Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India Indian Inst Sci Bangalore Karnataka India 560012 560012, Karnataka, India
Titolo Testata:
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE
, volume: 57, anno: 2001,
parte:, 1
pagine: 1 - 12
SICI:
0108-7681(200102)57:<1:SADIMP>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
OPEN-FRAMEWORK;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Rao, CNR Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Jakkur PO, Bangalore 560064, Karnataka, India Jawaharlal Nehru Ctr Adv Sci Res Jakkur PO Bangalore Karnataka India 560064
Citazione:
C.N.R. Rao et al., "Synthons and design in metal phosphates and oxalates with open architectures", ACT CRYST B, 57, 2001, pp. 1-12

Abstract

We briefly describe the structures of open-framework metal phosphates withdifferent dimensionalities, such as the one-dimensional linear-chain and ladder structures, two-dimensional layer structures and three-dimensional structures with channels. We demonstrate the role of the zero-dimensional four-membered ring monomer and of the one-dimensional ladder structure as the starting building units or synthons involved in the formation of the complex architectures. Thus, we show how the one-dimensional ladder structure transforms to two- and three-dimensional structures under mild conditions. Thetwo-dimensional layer structures also transform to three-dimensional structures, while the zero-dimensional monomer transforms to layered and three-dimensional structures under ordinary reaction conditions. These transformations provide an insight into the possible pathways involved in the buildingup of the complex structures of metal phosphates. The isolation of amine phosphates during the hydrothermal synthesis of metal phosphates and also the facile reactions between amine phosphates and metal ions to yield a variety of open-framework materials have thrown light on the mechanism of formation and design of these structures. The existence of a hierarchy of open-framework metal oxalates and their ready formation by employing amine oxalates as intermediates provides additional support to the observations made earlier with regard to the phosphates.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 15:56:48